What is botanical insecticide? Are there many such pesticides?

Plant pesticides refer to pesticides made from plants or their effective components that are toxic to other plant diseases and insect pests. The effective components in pyrethrum, derris and tobacco are pyrethroid, rotenone and nicotine. This kind of pesticide is not only safe for people and animals, but also does not pollute the environment, so this kind of pesticide is one of the key points of future development.

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Product name: Azadirachtin technical product description: Field pesticide Description: Azadirachtin is Azadriachtaindica azadirachta, mainly distributed in seed nuclei, followed by leaves. The mechanism of action is special, and it has the functions of antifeedant, avoidance, contact killing, stomach toxicity, internal absorption and inhibition of insect growth and development. It is internationally recognized as the most important insect antifeedant. English common name: Azadirachtin properties and characteristics: high efficiency, broad spectrum, no pollution, no residue, no resistance, harmless to warm-blooded animals such as humans and animals, and safe to natural enemies of pests. It can control more than 400 kinds of hygienic pests in agriculture, forestry and storage 10 mesh. Azadirachtin pesticide can effectively control cotton bollworm, caterpillar, gypsy moth, Japanese scarab, tobacco bud moth, rice borer, Spodoptera litura, cabbage caterpillar, liriomyza sativae, desert locust, African locust, corn borer, rice planthopper, thrips, Chilo suppressalis, fruit fly, armyworm and other pests, and can be widely used in grain, cotton and forest. Azadirachtin pesticide applied to soil can be absorbed by the roots of cotton, rice, corn, wheat, broad bean and other crops, and transported to the stems and leaves, thus making the whole plant insect-resistant. Product Name: 1.5% pyrethrin EW Content: 1.5% Product Description: Agricultural insecticide and sanitary insecticide Detailed description: "Sanbao Qihua" is a series of insecticidal products with natural pyrethrin as the core. Pure plant extract preparation, without adding any chemical synthetic ingredients, has the characteristics of broad spectrum, safety and little environmental pollution, and can be used for pest control of organic food, green food and exported agricultural products: 1, broad spectrum insecticidal. Using this product alone can kill most common pests efficiently without mixing with other pesticides. 2, the insecticidal speed is fast. This product is a contact nerve agent, which can knock down pests in a few minutes after contacting with their bodies, and its quick-acting effect can be comparable to that of general chemical pesticides. At the same time, this product also has stomach toxicity and repellent effect. 3. Long duration. Valid for more than 7 days. 4. Non-toxic to humans and animals. It decomposes quickly in human and livestock, and is non-toxic and harmless. 5. No drug resistance. Insecticidal mechanism is complex and will not produce drug resistance. 6, no residue. Pyrethrin is easy to degrade in the natural environment and has no residue. Sanbao Qihua is a new generation of green pesticides, which can be widely used for pest control in vegetables, fruit trees, horticultural flowers, tea gardens and fields, especially for the production of green pollution-free agricultural products and export agricultural products, and can pass any residue detection requirements.

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Because the modern industrial production technology of Chinese herbal medicines is not very mature, raw materials can not be standardized, and plant pesticides

That is to say, different varieties of the same plant, the same variety has different chemical substances due to different origins and ecological geography, and even the chemical substances contained in the roots, stems, leaves, flowers and fruits of the same plant are very different. In order to ensure the quality of products, we must constantly adjust the proportion of materials according to the quality of raw materials. The composition of Chinese herbal medicine is complex, and it is difficult to accurately determine the effective insecticidal analysis and detection of many plants. Therefore, in addition to testing the product quality according to relevant standards, bioassay is also needed to ensure the insecticidal effect. Through the efforts of experts, technical problems have been solved and new breakthroughs have been made in the development of some products. However, it is difficult to popularize and apply plant pesticides. Some localities and farmers have a weak awareness of environmental protection, lack the necessary understanding of biological pesticides and plant pesticides, and rely too much on the use of chemical pesticides, which hinders the commercialization of plant pesticides. Therefore, relevant departments should increase investment and guidance in the development of plant pesticides, so that plant pesticides can be put on a healthy track and protect green homes. Experts believe that China should vigorously develop plant pesticides. At present, more than 80% of pesticides used in China are chemical preparations. According to statistics, China imports 600 million US dollars worth of pesticides and pesticide raw materials every year. Developing domestic plant pesticides has become a new way for the development of pesticides and Chinese herbal medicines in China.

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The wide application of botanical insecticide will create very favorable conditions for the export of agricultural products in China.

Greatly improve the competitiveness of China's agricultural products export. The United States recently stipulated that all vegetables and fruits sold in the country must be marked with the content of pesticide residues. Facts have proved that more and more strict residue limit standards are becoming a "green barrier" for international food and agricultural products to maintain ease. The export of traditional agricultural products in China is being seriously threatened and challenged. From the perspective of export products, China's tea, vegetables, fruits, tobacco and other fist products are reduced or unable to export because of excessive pesticide residues, which greatly affects China's economic development. As far as tea is concerned, if plant pesticides are used instead of synthetic chemical pesticides, tea can be guaranteed not to be polluted by pesticide residues. At present, China exports 200,000 tons of tea every year. If the export increases by 654.38+0,000 tons, it will earn 20 million US dollars. If non-toxic plant pesticides are used, the export competitiveness of China's agricultural products such as vegetables, fruits and tobacco can be increased.

Edit the quality of this paragraph.

Because the modern industrial production technology of Chinese herbal medicine is not very mature, the raw materials of plant pesticides can not be standardized

That is to say, different varieties of the same plant and the same variety have great differences in chemical substances, even in the roots, stems, leaves, flowers and fruits of the same plant, because of their different places of origin and ecological geography. In order to ensure the quality of products, we must constantly adjust the proportion of materials according to the quality of raw materials. The composition of Chinese herbal medicine is complex, and it is difficult to accurately determine the effective insecticidal analysis and detection of many plants. Therefore, in addition to testing the product quality according to relevant standards, bioassay is also needed to ensure the insecticidal effect. Through the efforts of experts, technical problems have been solved and new breakthroughs have been made in the development of some products. However, it is difficult to popularize and apply plant pesticides. Some localities and farmers have a weak awareness of environmental protection, lack the necessary understanding of biological pesticides and plant pesticides, and rely too much on the use of chemical pesticides, which hinders the commercialization of plant pesticides. Therefore, relevant departments should increase investment and guidance in the development of plant pesticides, so that plant pesticides can be put on a healthy track and protect green homes. Weak selective toxicity to mammals; There is no persistent residue in the environment; There are many ways to act on the control object, such as poisoning, refusing to eat, avoiding and inhibiting the population, luring, anesthetizing and inhibiting growth and development. Pests and diseases are not easy to produce resistance; Mild production conditions and low cost. The Application of botanical insecticide

There are two main forms to create pesticides by using plant active ingredients: one is to directly use plant raw materials, extract and separate effective ingredients with insecticidal, antibacterial and antiviral effects from plants, and use them as the main body to prepare pollution-free plant-derived pesticides; The second is to separate and purify new substances with pesticide activity from a wide variety of plants, and use this lead compound as a structural template to optimize the structure at multiple levels to create new pesticides with high efficiency and low toxicity. Among them, the latter should be the mainstream of the future development of plant pesticides.